<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
    <el-row :gutter="20">
    <el-col :span="8">
      <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">

    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
  </el-input>
    </el-col>
    <el-col :span="4">
    <el-button type="primary" @click="goAddpage">添加商品</el-button>
    </el-col>
    </el-row>

    <!-- tab表格区域 -->
    <el-table :data="goodslist" border stripe>
    <el-table-column type="index"></el-table-column>
    <el-table-column label="商品名称" prop="goods_name"></el-table-column>
    <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
    <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
    <el-table-column label="创建时间" prop="add_time" width="140px">
    <template slot-scope="scope">
    {{scope.row.add_time | dateFormat}}
    </template>
    </el-table-column>
    <el-table-column label="操作" width="130px">
    <template slot-scope="scope">
    <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
    </template>
    </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <el-pagination
    @size-change="handleSizeChange"
    @current-change="handleCurrentChange"
    :current-page="queryInfo.pagenum"
    :page-sizes="[5, 10, 15, 20]"
    :page-size="queryInfo.pagesize"
    layout="total, sizes, prev, pager, next, jumper"
    :total="total" background>
    </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })

      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }

      this.$message.success('获取商品列表成功！')
      console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagesize = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResilt = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)

      if (confirmResilt !== 'confirm') {
        return this.$message.info('已取消删除！')
      }

      const { data: res } = await this.$http.delete(`goods/${id}`)

      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }

      this.$message.success('删除成功！')
      this.getGoodsList()
    },
    goAddpage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
